Buy Kadena Miners – Blake2S ASICs from Germany's mining experts

The profitability of Kadena mining depends heavily on network activity. As demand increases and network engagement increases, mining difficulty also increases.

The market for Kadena mining hardware has evolved significantly in recent years. Older devices are now technically obsolete and can no longer be used economically. At the same time, there are now very powerful successors with significantly higher efficiency and performance.

‍

No longer available/ outdated Kadena Miner:

• iBeLink BM-K3 (70 TH/s) - Formerly one of the more powerful Kadena devices, but now technically and economically obsolete.

• iBeLink BM-K1 Max (32 TH/s)

• Goldshell KD Max (40.2 TH/s)

‍

Current Kadena miners (as of today):

• Bitmain Antminer KA3 — 166 TH/s
• Bitmain Antminer KA3 — 173 TH/s

‍

These current models offer many times the computing power combined with better energy efficiency and are currently the most economically viable choice for Kadena mining.‍

‍

Note: If you're looking for an older model like the iBeLink BM-K3, feel free to take a look at the devices at the top of the overview page!

Yes, Kadena (KDA) can be mined and is one of the seriously mineable proof-of-work coins - even after the Kadena Foundation wound down its operations in October 2025, the blockchain keeps running unchanged. It is mined using the Blake2S algorithm with specialised ASIC miners such as the Antminer KA3, which provide computing power around the clock and in return receive new KDA as a block reward.

Kadena's distinctive feature is the Chainweb protocol: instead of a single chain, 20 parallel, interwoven chains run at once. How mining works in detail, what hardware is required and what matters with pool and wallet is covered by the questions below as well as our Kadena miner overview.

Kadena (KDA) is a proof-of-work cryptocurrency using the Blake2S algorithm, whose hallmark is the Chainweb protocol: 20 parallel blockchains run simultaneously and secure each other, which is meant to enable higher throughput than a single chain. KDA is mined classically through computing power with ASIC hardware.

Important context for miners: the Kadena Foundation announced on 21 October 2025 that it was discontinuing its operational business; the blockchain itself has since been kept running by independent miners and a community-driven developer group. We explain in detail what is behind the project in our article What is Kadena.

Kadena spreads its work across 20 parallel blockchains that are interwoven - this mesh is called Chainweb and allows a very high transaction throughput. On each of these chains, Blake2S ASICs such as the Antminer KA3 search for valid blocks.

At its core it is proof of work like Bitcoin: a device continuously solves cryptographic computational tasks, and whoever finds a valid block receives the block reward in KDA (currently around 0.95 KDA per block). Because a single device rarely scores a hit across 20 chains, almost all miners pool their hashrate in a pool such as F2Pool or DxPool. Mining thus brings new KDA into circulation and secures Chainweb against manipulation.

Braided Proof of Work is Kadena's distinctive feature: instead of a single blockchain, 20 parallel chains run (Chain 0 to Chain 19) that are interwoven ("braided") and secure one another. All chains use the same Blake2S algorithm but distribute the work across the entire mesh.

For Kadena miners this matters practically for two reasons: first, the network's computing power is spread across all chains, and your hardware is deployed by the pool across the braided chains. Second, KDA addresses exist per chain (0-19), which is why the correct payout chain must be set in the pool. The braiding changes nothing about the actual hashing - it only increases the possible throughput.

Kadena mining is based on the Blake2S algorithm, combined with the Chainweb protocol, which distributes the computational work across 20 parallel chains. Blake2S is the cryptographic task every Kadena ASIC is hard-wired to.

Blake2S today is completely dominated by specialised ASIC devices such as the Antminer KA3; graphics cards or PCs stand no chance. Other coins partly use entirely different algorithms (Bitcoin, for example, SHA-256), which is why their hardware is unsuitable for Kadena and vice versa. Anyone wanting to mine KDA needs Blake2S hardware specifically.

For Kadena mining you need Blake2S ASIC miners - devices whose chips are built exclusively for the Kadena algorithm and therefore deliver many times the computing power per watt compared to graphics cards. The reference device is the Antminer KA3 from Bitmain with around 166-173 TH/s at about 3.2 kW; alongside it there are older models such as the Goldshell KD series and the iBeLink BM-K range.

ASIC stands for application-specific integrated circuit: such a device handles only Blake2S, but does so particularly efficiently. That is precisely the prerequisite today for staying competitive in the Kadena network. You can find the currently available models in our Kadena miner category.

For Kadena (KDA) there is no sensible GPU or PC option - in practice the Blake2S algorithm is served only by specialised ASICs such as the Antminer KA3, against which graphics cards stand no chance.

A Blake2S ASIC of this class reaches around 166-173 TH/s. This order of magnitude is not achievable with consumer hardware: a GPU would be many times below it at the KDA difficulty and would consume many times the electricity per share found. Unlike coins with a long GPU history, the ASIC line established itself early at Kadena. You can find the right Kadena ASIC with us; profitability depends on electricity price, KDA price and difficulty.

Kadena mining runs on Blake2S ASICs such as the Antminer KA3, and they are controlled entirely through their built-in firmware - no separate software is needed. There is one peculiarity in the configuration via the web interface: besides the pool (e.g. F2Pool or DxPool) and the KDA wallet address, you must specify the correct payout chain because of Kadena's multi-chain architecture, otherwise the rewards do not arrive.

Getting started requires no additional programs. Anyone running multiple KA3s can optionally layer a management software on top for centralised monitoring.

Various Blake2S ASICs are available to buy - in the industrial segment above all the Antminer KA3 from Bitmain (around 166-173 TH/s, approx. 3.2 kW) as the reference device, plus older models such as the Goldshell KD series and the iBeLink BM-K range. They differ mainly in hashrate and efficiency (J/TH); you can find the currently available models at the top of this page.

At Cryptohall24 you order the right Kadena miners directly - new or as a tested used device. Which model suits you depends on whether you want to mine at home or have it hosted and how high your budget is; we are happy to advise you on this.

For Kadena the range spans from older Goldshell KD or iBeLink devices at the lower end up to the current industrial ASIC Antminer KA3 (around 166-173 TH/s) in the upper four-figure euro range. As always, prices are governed by hashrate and efficiency.

One point additionally shapes the Kadena calculation: after the project wind-down in 2025 the KDA price has fallen, which shifts profitability compared with earlier years. Purchase price, electricity costs and expected KDA yield must therefore be weighed against each other particularly carefully. You can find the Antminer KA3 and all further models including the current daily price at the top of this page.

With Kadena mining almost everything comes down to condition: a well-maintained, tested Antminer KA3 hashes its roughly 166-173 TH/s on Blake2S even when used and often costs noticeably less than a new device. Alongside new goods, Cryptohall24 also carries tested used devices for Kadena.

It looks different with the older KD series or iBeLink models - they do still deliver hashrate, but draw more electricity per TH and thus squeeze the margin. Whether used pays off is a pure calculation of purchase price, J/TH efficiency and your electricity price at the location. We work this out with you and show you suitable Kadena miners from stock.

Mining produces KDA yourself via a Blake2S ASIC with ongoing block rewards; buying delivers finished KDA immediately at the current price, provided a crypto exchange such as Bitget or Binance lists the coin - with Kadena this availability check is worthwhile, since KDA is not traded everywhere continuously.

The two paths thus differ clearly: buying is effective immediately and depends only on the entry price, but is tied to the liquidity of the respective exchange. Mining is an ongoing activity with a hardware and electricity investment, whose yield is determined by electricity price, KDA price and difficulty. Cryptohall24 sells the Blake2S hardware and offers hosting; the KDA trading itself is handled by the exchanges.

A home miner would be a quiet, compact device for operation in living spaces - but with Kadena this category barely plays a role, because Blake2S mining is dominated by loud industrial ASICs such as the Antminer KA3 (approx. 3.2 kW). Genuine, living-room-suitable KDA home miners practically do not exist.

Technically a KA3 can be run at home too, but in practice it usually fails on noise (around vacuum-cleaner level), waste heat and the electricity bill. Anyone wanting to mine Kadena seriously can hardly avoid an industrial ASIC - and thus faces the choice between a quiet location (basement, garage) or hosting in a data centre.

Kadena miners are almost universally air-cooled. The Antminer KA3, the standard device for the Blake2S algorithm, dissipates its waste heat via powerful built-in fans and needs no additional cooling technology.

A hydro variant built specifically for KDA is barely available on the market - water-loop cooling remains reserved for the very largest device classes and plays practically no role with Kadena. Decisive for the stable operation of a KA3 are therefore good ventilation, a clear exhaust-air path and a location where the heat is reliably carried away. Anyone wanting to avoid the noise has the device hosted.

A Kadena miner is loud - an air-cooled industrial ASIC such as the Antminer KA3 reaches around 75 dB in operation, roughly the level of a running vacuum cleaner, because its fans have to dissipate the waste heat of approx. 3.2 kW in continuous operation. An ordinary living space is barely suitable for this.

Since Kadena mining is dominated by such Blake2S industrial devices, there are hardly any quiet alternatives for the living area. Anyone wanting to avoid the noise places the device in a quiet spot such as a basement or garage - or has it hosted in a data centre, where the noise level plays no role.

A KDA wallet is required, and with Kadena there is an added peculiarity you must watch closely: addresses exist per chain (0 to 19) and have the format "k:" followed by the public key. The payout chain entered in the pool must match exactly the chain of your receiving address - otherwise the KDA end up on the wrong chain.

Common Kadena wallets are the Koala Wallet or X-Wallet; both generate the k: address format and manage the chain assignment. Enter the matching address in the mining pool and keep your private key safe - the mined coins then belong exclusively to you.

Kadena mining runs through a small but stable group of pools - above all F2Pool, DxPool and Antpool, which predominantly pay out under the PPS model with around 1 to 3 percent fee. Besides the fee, they differ in minimum payout and pool size.

Kadena brings a peculiarity with it: KDA addresses exist per chain (0 to 19), which is why the correct payout chain must be set in the pool, otherwise the reward ends up nowhere. Since fees and conditions change continuously, check them directly with the respective pool before choosing.

The best Kadena pool is always the one that correctly supports your payout chain (0 to 19) - this KDA-specific point trumps the pure fee level when in doubt. Only after that do fee, payout model and minimum payout count, with a large pool ensuring steadier payouts at low hashrate.

Good starting points are established KDA pools such as F2Pool, DxPool and Antpool, which mostly settle via PPS with around 1 to 3 percent fee. First check the chain support, then compare the fees and verify them on a daily basis with the provider.

A Kadena peculiarity shapes solo mining: the computing power is spread across 20 parallel chains, and the network's total hashrate is high. Your single Antminer KA3 measures itself against all of that alone.

If it finds a block, the full reward of around 0.95 KDA belongs to you - but statistically that happens so rarely with one device that long yield-less stretches lie in between. For predictable, even payouts there is therefore no way around a pool such as F2Pool or DxPool for nearly all Kadena miners, which covers the 20 chains for you and bundles the yields.

Common air-cooled Kadena devices sit roughly at 3 to 3.5 kW: the widespread Blake2S ASIC Antminer KA3, for example, draws around 3.2 kW and reaches roughly 28,000 kWh per year in continuous operation. Because the ASIC runs around the clock, electricity is by far the largest ongoing cost factor in Kadena mining.

The exact consumption depends on the device and its efficiency (J/TH). The electricity price is thus the most important profitability lever - at household electricity of around 30 ct/kWh continuous operation becomes expensive, which is why mining is often done at locations with cheap energy.

No, Kadena (KDA) has no halving like Bitcoin. Instead of abruptly halving the block reward at a fixed block height, Kadena uses a continuously declining emission curve - the issuance of new KDA decreases gradually rather than halving every four years.

For Kadena miners this means: there is no single cut-off date on which the block yield suddenly halves. The reward currently sits at around 0.95 KDA per block and falls slowly; according to the emission schedule, rewards are paid out until the year 2139. For profitability, the KDA price, difficulty and your electricity price are therefore far more important in the short term than the emission curve.

Yes, Kadena (KDA) remains mineable after 2025 too. The Kadena Foundation announced on 21 October 2025 that it was discontinuing its operational business, but the blockchain itself keeps running independently - operated and maintained by independent miners and a community-driven developer group.

For you as the operator of a Kadena ASIC, nothing changes technically about mining: the Blake2S network keeps producing blocks, pools such as F2Pool keep paying out. What matters is the increased uncertainty after the core team's withdrawal - the KDA price collapsed by around 75 percent after the announcement. You make the assessment of coin risk and price development yourself and should check it on a daily basis.

Whether Kadena mining is worth it in 2026 depends above all on the KDA price, the network difficulty and your electricity price. Kadena is technically fully mineable, but the margins have become significantly tighter due to the price that fell after the project wind-down and the increased network hashrate.

With cheap electricity and an efficient device such as the Antminer KA3, mining can be profitable under suitable conditions; with expensive household electricity the calculation quickly tips into the red. On top of this comes the increased uncertainty at Kadena after the core team's withdrawal, which belongs in your own risk assessment. You calculate your scenario most reliably in advance with a current mining calculator such as AsicMinerValue.

The net yield in Kadena mining is your device's KDA block share minus electricity costs - a fixed figure cannot be given, because the KDA price, difficulty, electricity price and pool fee fluctuate daily. With a block reward of around 0.95 KDA and 50,000 blocks per day in the network, your share depends on how much hashrate your Antminer KA3 contributes to the total difficulty.

If the electricity price is high, the same KA3 can slide into the loss zone; with cheap electricity a plus remains after deductions. On top of this comes the increased coin risk at Kadena after the project wind-down in 2025. Estimate your specific yield on a daily basis via a mining calculator for the KA3.

An Antminer KA3 with around 166-173 TH/s on the Blake2S algorithm is the typical benchmark for Kadena mining - how many KDA that produces per day results from the ratio of this hashrate to the total network difficulty and your share in the pool. A fixed daily amount does not exist.

Kadena distributes its block reward across several parallel chains, and both the network hashrate and the KDA price move daily. The gross expected KDA yield for your hardware is provided by a current mining calculator; net, what remains is the amount after deduction of your electricity costs.

For Kadena you best calculate profitability using the real key figures of an Antminer KA3: 166-173 TH/s on the Blake2S algorithm at around 3.2 kW draw. You enter precisely these three values - hashrate, consumption and your electricity price - into a mining calculator, which together with the current KDA price and network difficulty forms the estimated daily or monthly yield.

In practice this works at AsicMinerValue, where the common Blake2S models are listed with daily profitability. Because price and difficulty fluctuate, every figure remains a snapshot - check your scenario again shortly before purchase.

What is decisive in Kadena mining at home is less the technology than the acoustics: the Blake2S ASIC Antminer KA3 draws around 3.2 kW and, with its fan noise and waste heat, belongs not in the living space but in a basement, garage or a separate technical room. Setting it up is no problem - you just would not want to live next to it.

Economically, everything stands and falls with the electricity price. Household electricity of around 30 ct/kWh usually eats up the Kadena yield at this consumption; only with a cheap tariff or your own solar power from a photovoltaic system does the calculation turn. Anyone wanting to run more than one or two KA3s can hardly avoid the noise and heat question in their own home - from this scale onwards, hosting in a data centre is usually the more practical route.

An Antminer KA3 draws around 3.2 kW from the socket and gives off nearly this entire power again as heat - physically, a Kadena miner therefore works like an electric fan heater that mines KDA via the Blake2S algorithm on the side. It is quite suitable for heating: a single device noticeably warms a medium-sized room.

The catch is the noise. The KA3 industrial devices sit at around 75 dB, which is why a basement, a garage or a workshop is the suitable location - in the living room the fan noise quickly becomes disruptive. The heating dual use pays off arithmetically above all when electricity is cheap or comes from your own photovoltaics: then the heat falls off virtually as a by-product of mining and the KDA yields lower the effective heating costs.

Kadena is a special case insofar as the difficulty does not apply to a single chain but is managed across the 20 parallel chains of the Chainweb architecture - it is the measure of how hard it is to find a valid block on these chains.

It is regulated via the Blake2S algorithm: the more hashrate miners contribute in total, the higher the difficulty climbs, so that blocks arise at the intended pace despite growing computing power. If the hashrate falls, the network eases the difficulty again.

In practice this means: if the difficulty rises, your share of the KDA paid out per day shrinks. Whether Kadena mining sustains itself with an Antminer KA3 and your electricity price therefore depends directly on the current difficulty level.

Anyone who does not want to run a Kadena miner such as the Antminer KA3 at home can have it hosted at Cryptohall24: we take precisely these Blake2S industrial ASICs into the data centre, handle installation, power supply and operation, while the device remains your property.

The KA3 in particular makes the difference clear - with around 75 dB, considerable waste heat and 3.2 kW continuous load, it is barely suitable for the home, yet cleanly calculable at an industrial location with cheap electricity. Which criteria matter when choosing a host is explained in our mining hosting guide.

In Kadena mining, the Antminer KA3 is the hostable device: the Blake2S industrial ASIC from Bitmain delivers around 166 to 173 TH/s at about 3.2 kW and defines Kadena mining - a continuous-load machine built for data-centre operation and which Cryptohall24 accordingly takes into hosting.

Very economical niche or home devices are generally not among them; they are designed for self-operation, and those we are happy to sell and explain rather than host. Whether your specific Kadena device fits into hosting we are happy to clarify on a case-by-case basis.

Anyone who mines Kadena regularly and with the intention of making a profit is thereby carrying out a commercial activity in Germany - this is legal here without further ado, but the KDA earned count as taxable business income. Whether mining is permitted at all is decided by the location.

Set against this are the ongoing costs: electricity consumption, hosting fees and the acquisition of the KA3 reduce the taxable profit as expenses. Outside Germany, partly entirely different rules apply, which is why you should have your exact classification checked by a tax advisor. This text serves as orientation and does not replace professional advice.

An ASIC is special-purpose hardware that is fixed at the factory to exactly one algorithm - with the Antminer KA3 that is Blake2S. As a result, a Kadena miner can only mine Blake2S coins, and there are practically none of those apart from Kadena itself.

A switch to Bitcoin (SHA-256) or Litecoin (Scrypt) is technically impossible, since the chip cannot be reconfigured to a foreign algorithm. For other coins, separate hardware is required in each case, which you can find in the ASIC miner category.